public class DatabaseHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME="assignment.db";
public static final String TABLE_NAME="assignment_data";
public static final int DATABASE_VERSION=1;
public static final String COL_1="ID";
public static final String COL_2="ASSIGNMENT_NAME";
public static final String COL_3="SUBMISSION_DATE";
public static final String COL_4="INFORMATION";
public static final String COL_5="REMARKS";

07-10 08:51:45.497 27027-27027/com.dutt.rishabh.assignmentbuddy E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.dutt.rishabh.assignmentbuddy, PID: 27027
java.lang.NullPointerException
at com.dutt.rishabh.assignmentbuddy.View$1.onClick(View.java:36)
at android.view.View.performClick(View.java:4482)
at android.view.View$PerformClick.run(View.java:18787)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5345)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
at dalvik.system.NativeStart.main(Native Method)